Six tomato plants is a bit much for a window planter, unless they are all dwarf varieties. Luckily they are easy to transplant once they get to be about 6 in. high. They're going to get bushy and all up in each others' business.

Haha we're so emotional. Angie, you don't have to kill the entire basil plant to eat it, you can just prune a few leaves at a time. If you take off too much, like a big stem, you can always put it in a glass of water and it will grow new roots! The stuff is tough, unlike us weepy girls ;__;